Why make your own contraption or lug around some piece of hardware bigger than your Kindle? The Kindle 2 is minimalist beauty and there is only one accessory that matches that. I found the Cyncronix Kindle Stand on Amazon that stays on the Kindle all the time, folded flat when you don't need it and folded out when you need the Kindle to stand at just the right angle. I love it, it's thin, flat, and light, and you notice it only when you need it!
http://www.amazon.com/Cyncronix-For-Kindle-KSA-6-Stand/dp/B0030E8BT0/ref=sr_1_1?ie=UTF8&qid=1261461452&sr=8-1